Combination feed cutter and hammer mill



Sept. 23, 1930; H. J. MEYER 1,776,593

7 I I COMBINATION FEED CUTTER AND HAMMER MILL Filed Se t 4, 1928 4 Sheets-Sheet 1 v fijwmu H. J. MEYER Sept. 23, 1930. 1

' comammxou FEED CUTTER AND HAMMER MILL Filed Sept-4, 192s (Sheets-Sheet 2 H. J. MEYER Sept. 23, 1930.

1,776,593 I COMBINATION FEED CUTTER AND HAMMER MILL 4 Sheets-Sheet Filed Sept. 4, 1928 j Sept. 23, 1930. I a l. JIMEYER 1,776,593

COMBINATION FEED CUTTER AND HAMMER MILL Filed Sept. 192s 4 sheets-sheet 4 wherever desired.

Patented Sept; 23, 1930 UNITED v STATES PATENT OFFICE HENRY J. MEYER, WA'UKESEA, WISCONSIN, ASSIGNOB TO I. B. BOWELL 60., F

' 'WAUKESHA, WISCONSIN commarron 1mm: cur'ma AND HAMMER mi.

Application filed September 4, 1928. Serial No. 303,803.

This invention relates to a combination feed cutter and hammer mill.

Objects of this invention are to provlde a novel machine which combines a feed cutter and hammer mill with means for receiving the comminuted feed and material from the hammer mill which thoroughly mixes and delivers such feed to a fan which, in turn, delivers the thoroughly mixed material It is a well known fact that a recutter and a hammer mill both must operate at a high rate of speed toeifectively function, and it is also apparentthat several high speed devices mounted in one machine and separately driven will eventually cause considerable vibration for the entire machine.

This invention is designed to overcome the defects noted immediately above, and further 2 objects of this invention are to provide a ma chine which combines a rapidly rotating feed cutter, hammer mill, and fan, and has a single shaft for each of these instrumentalities, so that absolute balancing and freedom from vibration, together with a marked simplification in the driving mechanism is obtained.

An embodiment of the invention is. shown in the accompanying drawings in which:

Figure 1 is a fragmentary side elevation of the combined machine a Figure 2 is a sectional view on the line 22 of Figure 1;

Figure 3 is a sectional view on the line 3-3 of Figure2;

Figure 4 is a sectional view on the line 4-4 of Figure 2.

Referring to the drawings, part1cularly Figure 1, 1t will'be seen that roughly the usual construction of feed cutting machine is followed. The machine comprises a feed cutter shaft 1 and a recutter shaft 2, upon which are carried the pulleys 3 and 4, respectively.

belt 5, or in any other suitable manner, and preferably an idler pulley 6 is rovided to secure the requisite grip of the elt around the pulleys 3 and 4.

The shaft 1, as may be seen from Figures 1 and 2, is provided with a sprocket wheel These'pulle ys are driven by means ofthebottom 'apertured portion 37 of the hammer 7 which drives by means of a chain a s rocket wheel 8. The spirocket wheel8 is rigidly attached to spro et wheels 9 and 10, which respectively drive asprocket wheel 11 mounted upon the conveyor shaft 12 and a rocket wheel 13 mounted upon a short stub s aft 14. The stub shaft 14 carries a small gear 15 which is in mesh-with a second small gear 16.

.Both of these gears are carried upon a rocking frame 17 which is controlled by the pivot lever or hand lever 18. Either ar 15 or 16 may be thrown into mesh wit a gear 19 mounted upon the shaft 20 hereinafter described.

The shaft'20 drives in any conventional manner, not shown, the shafts 21, 22, and 23. The shafts-20and 21 carry the feed rollers 24 and 25, the roller 25'being floating. The shaft 22 carries the upper roller 26. The shaft 23 carries the drive roller for the conveyor 27 which brings the feed to the cutter in the usual manner. Immediately adjacent the roller 14, the cutter bar 28 is positioned. The floating of the shafts 21 and 22 is readily accomplished by means of the tension bars 29 (see Figure 1) which are located on opposite sides of the machine and which are drawn downwardly by means of the springpressed rods 30.

Referring to Figure 3, it will be seen that so the shaft 1 carries the cutter 31, which cooperates with the cutter bar 28 in the usual manner. Immediately below the cutter, a recutter 32 is positioned and is carried upon the shaft 2. This recutter is mounted within a casing 33 which is provided with a plurality of apertures 34 from which the comminuted feed may pass. A downwardly converging receiving casing 35 is positionedimmediately below the recutter and receives the comminuted' feed therefrom.

The casing 35 extends across the bottom of the machine and houses the screw conveyor 36. This casing 35 is positioned below the mill. This hammer mill has the'rotary member 38 provided with a plurality of hammer heads 39. Each of these hammer heads, as may be seen from Figure 4, is pivotally mounted and carried by pins which, in turn,

are carried by the discs forming the rotor 38. The heads may be reversed or changed, end for end, so that four active corner portions may be employed to thus prolong the life of these heads. The material for the hammer millis supplied by means of an adjustable chute or hopper (see Figures 1, 3, and 4). This hopper discharges directly into the main casing 41 of the hammer mill.

Itis to be noted that the casing which encloses the conveyor extends completely across the bottom of the machine and terminates in in tubular portion which is connected by means of the pipe 42, which leads to the suction end of the fan casing 43. The discharge portion or chute of the fan casin is indicated by the reference character 44 an may be connected with a silo or any other desired point. Within the fan casing, a rotary fan 45 is positioned.

It is to be noted, I ence to Figure 2, at the recutter 32, 'the hammer mill rotor 38, and the fan 45, are all mounted uponthe same shaft, indicated by the reference character 2, and previously described. Thisshaft, it will be noted, is supported adjacent each end and intermediate its ends, that is to say, between the rotor of the hammer mill and the recutter. It is, therefore, possiblewith this construction to minimize the vibration of the entire machine.

It is also apparent that it is easier to bal ance up the machine than where three separate high speed instrumentalities are employed. Instead of this, these three high slpeed instrumentalities, namely, the recutter,

e hammer mill, and the fan, are all rigidly carried by a firmly supported main shaft.

It is also apparent that the screw conveyor 36 insures a thorough mixin' of the c m-Z- minuted feed with the maternal discharged from the hammer mill, as it passes the comarticularly from refer-.

- char mill and recutter.

2. A combination feed cutter and hammer mill comprising a feed cutter, a recutter located below said feed cutter, a hammer mill having a rotary portion mounted upon the shaft of the recutter, a fan comprisin a casing having an inlet and an outlet portlon and having a fan mounted upon the recutter shaft,

a conveyor located below the recutter and hammer mill, and a pipe connecting the discharge end of the conveyor with the inlet portion of the fan, whereby different materials may be comminuted and thoroughly mixed and delivered by said fan through its disportion.

3. n a machine of the classldescribed, the combination of a cutter, a recutter mounted below said cutter and adapted to comminute material discharged from said cutter, a hammer mill coaxial with said recutter, and means mounted below said hammer mill and recutter for receiving, mixing and delivering material discharged from said hammer mill and recutter.

In testimony that I claim the foregoing I have hereunto set my hand at Waukesha, in the county of Waukesha and State of Wisconsin.

HENRY J MEYER.

minuted feed below the hammer mill, and

thus the material from the hammer mill is dropped in a uniform manner upon the passin comminuted feed.

hereafter, this mixture is delivered to the fan andthrough the action of the fan is carried to the desired mixed condition.

-It will be seen further that a relatively I cate or easily damaged parts, and which instead, is extremely sturdy and reliable in operation.

Although the invention has been described a in considerable detail, such description is in- I tended as illustrative ratherthan limiting as point in a thoroughly" the invention may be variously embodied and as the scope of suchinvention is to be determined as claimed.

claim: r 1. In a machine of the class described, the combination of a cutter, a recutter mounted 

